Judy Schmidt @geckzilla@mastodon.social

If you search the web about this, you'll find one article claiming it takes the outer layer of your skin off, but I mean, after I scrubbed it off my skin doesn't feel raw and pink like it described. It felt more like getting a glue layer off.

Butternut squashed my hands today. 😱

What it feels like: Super krazy glue adhered all over your skin that won't come off. Cracked, and extremely dry. Don't understand if it's really the top layer of my skin or some kind of residue.

I finished this up today by making a video for Youtube and the full-size still for my Flickr gallery.
https://www.youtube.com/watch?v=YZUJysgK6Us
https://www.flickr.com/photos/geckzilla/48727564948/

I'm glad so many people found enjoyment watching this. Now I must search for another new place to investigate.

I don't have the appropriate Chandra data to make a true animation for the second frame, but given the original Chandra animation seems to expand quite regularly, simply scaling the images to match creates a reasonable approximation.

Here we go:
Make color HST image,
add color CXO image,
Take the two narrowband images, check how much they expanded,
Scale CXO image to match narrowband expansion

Color animation!

Hmm, here's the same supernova remnant from Hubble in narrowband with a 10 year gap between frames. A few stars zooming around too, though I think only the one bright one will be obvious in the gif.

I made a color image too, but it's really not all that different from what was done before I came along: https://chandra.harvard.edu/photo/2008/snr0509/
Ah well, sometimes I find a new take on things, and other times I realize I'm just rehashing something very similarly.

I started looking at these data because I wondered if the clumps seen in this composite image were real or just noise. Turns out they're real. https://chandra.harvard.edu/photo/2010/snr0509/

Here's another expanding supernova remnant, this time SNR J0509.5-6731. Only a 7 year gap between the two frames this time. There is hope that future observations will be made that would show more expansion, but I'm not sure when or if it will happen.

Found an HST supernova remnant I'd previously processed and added Chandra data to it. A bit easier when half the work was already done earlier. Trying to find some other-than-SNR targets to do, but SNRs really are the best.
https://flic.kr/p/2hdb3w5

I can't believe it. Nothing ever works like this in life. Two completely different programs just... doing things together like they're one thing. How. I will tell you I have been very confused about how Aladin kept moving to other targets when I wasn't using it.

I was just sitting here looking at some Chandra data, wondering which part corresponded to the sky map in Aladin, when I clicked to recenter the image in SAO ds9, and magically, the cursor in Aladin moved with it. WHAT IS THIS. The whole time!?

ps - I am so pleasantly surprised at how many people seem to be enjoying these latest threads, especially with this one beginning with a grainy and blurry black and white animation. Did not expect it, and thank you.

Here's the final image with Chandra and Hubble data combined. You can see how only the right half has a visible light shell surrounding it.

Surprise! There's also a planetary nebula to the lower right. It's easy to see because it's glowing brightly in oxygen ([O III]) emission.

Here's an x-ray only version of the same image from earlier. Hotter x-rays are blue, cooler x-rays are red, with intermediate in green and yellows. Lots of structure in x-ray light that's not seen in visible light. It took a lot of work to get it here.

ESA released a version of this nebula that showed a wider view including NGC 1850, a huge cluster of stars at the bottom of the frame. All that starlight! I actually use one of the narrowband filters as a partial luminosity layer to remove some starlight.
https://www.spacetelescope.org/images/heic1707a/

Here's what the remnant looks like in visible light along with hydrogen (Ha) and oxygen ([O III]) emission. The redder parts show the hydrogen, the yellower parts show the oxygen. You'd have a hard time saying this is the same nebula compared with the x-ray emission.

Did some command line scripting to get SAO DS9 to output various possible filter ratios. I don't know if I'll ever be doing this the "right" way, but maybe I can find the prettiest way.

You can kind of see how the right side lights up first, and then it flows over to the left side. I dunno if that's just because it's brighter on that side, or if it has some kind of meaning. x-rays continue to confuse me

I've been trying to figure out how to filter the energy levels with Chandra data, so I decided to split one observation into 100 eV chunks to see if there was any pattern. Wasn't expecting it to kind of pulse as a whole. Was expecting individual pieces to highlight separately.